We too would love encryption in group chats. This would help us eliminate use of 3rd party applications where we need to discuss something very sensitive and want it to never make to any servers in a raw form. We have to do it anyway, be it in Discourse or somewhere else. Being able to elimintate the use of a 3rd party app while we do already use Discourse, would be a win for us.
Are chat messages removed from database completely 100%?
Also, it’s worth mentioning that the unencrypted chat message will live in backups as well.